The Blues are three points clear at the top of the table ahead of the visit of third-placed Aston Villa at Stamford Bridge on Saturday.
We have very good periods, but in the end, what is important is that nobody is ahead of us
Chelsea saw their 100 per cent record top-flight record come to an end last Sunday after a 1-1 draw with champions Manchester City.
And Blues manager Mourinho was able to single out plus points in all five of their games without naming a particular highlight.
“We did well in every match,” Mourinho told the media at his pre-match media conference.
“I know that it would be easy for me to say we have a period at Burnley where the team played fantastic, which we had the same against Swansea for a certain period, against Leicester for the same period.
“We were deadly in counter-attack at Everton. We were fantastic the way we defending collectively against Man City.
“We have very good periods, but in the end, what is important is that nobody is ahead of us. We look down and we see the other 19 teams.”
The Chelsea manager, who was particularly coy with the media on Friday, was asked to give Chelsea a grade out of 10 for their first five league performances.
Mourinho curtly replied: “I don’t go for 6, 7 or 8, we have to improve in every aspect.”
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